This is anticipated to arrive at Earth
on January 9 (Thursday) around 08:00 UT (which is 19:00 AEDST) +/- 7 hours! (so
it could arrive as early as midday or as late as 2 am on the morning of the
10th).

The Answer is "maybe", the CME has not im pacted yet. se we have no overall feeling for waht is going to happen. If nothing has happened by midnight I would say head for bed (which of course means there will be a marvellous display immediately you head bedwards, whereas if you stay up all night nothing will happen)